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Urine marking was examined in house mice, deermice, gerbils and hamsters. The frequency of urine deposition varied with the species, and a correlation is suggested between the propensity of males to mark in this fashion and prepuce length and morphology. We postulate an adaptational advantage for a long penis sheath and for a particular configuration of the prepuce; i.e. to act as a wick for the deposition of urinary pheromones.
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MARUNIAK et al. (1975) studied this question.
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